Penthouse - Fort Cambridge:
Fort Cambridge is one of the last forts of the 19th Century situated in Tigne Point peninsula and was specifically built to accommodate one of only four produced 100-tonne guns by the British Army. Fort Cambridge PLC submitted an application to the Malta Environment and Planning Authority (MEPA) for the restoration of the Fort Cambridge battery which was recently approved. The restoration will be carried out by tradesmen and architects from TBA Periti under the supervision of architect Prof. Alex Torpiano.
ENERGY SAVING MEASURES
Energy saving measures - Lighting
1. Energy efficient lighting in landscaped areas, service areas, common areas, fire escape stairs, parking areas and in other ancillary areas. High efficient fluorescent (FL), compact fluorescent (CFL) and other types of energy saving lights will be used. The advantages of these include:
a. High luminous output for lower wattage
b. Lower heat emissions. This would create a lower heat demand on air-conditioning and ventilation systems, thus, also lowering energy consumption.
2. 10 photovoltaic panels will be installed on the roof. Each consists of a two kilowattpeak panel and these will be used to power the lighting of ten apartment common areas. The total installed power is twenty kilowattpeak and at 1550 annual solar hours, these would generate a total of 31,000kWhrs.
3. Localised power factor correction equipment is to be installed in order to compensate for unused reactive power that is consumed by most of electrical motors and energy saving lighting systems. The installed system is designed to eventually null this unused component of generated power.
4. Building Management Control System which will monitor all equipment in the building and be able to assess what is unnecessarily in operation.
5. Presence Controlled Lighting Schemes: all lighting facilities and all public areas, common areas and car serving parking level are to be controlled by presence detectors and there will be no need for manual intervention.
6. Photocell Control Lighting Schemes for External Lighting: all external lighting will be controlled via a photocell unit which will ensure that artificial lighting will be activated only during periods of low natural illumination. Apart from energy saving, advantages also include:
a. Non-dependence on time, which varies from season to season
b. Significant impact on maintenance and lamp replacement interventions
7. Control of Lighting and Equipment in Ancillary Areas: all power consumption will be de-activated during ‘no-activity’ time. This will mainly include presence detectors in storage and service areas which will control lighting, ventilation and other services.
Energy Saving Measures – Other
1. The Passengers’ Lifts which were selected are those of the most energy efficient lift machine on the market.
2. Water Cooled Air-Conditioning Systems: individual air-conditioning systems for each apartment will consist of water cooled outdoor units. This type of system presents several advantages:
a. Reduced use of refrigerant gas which is harmful to the environment and responsible for the increased greenhouse effect.
b. Water cooled air-conditioning units have a 21% higher COP (Coefficient Of Performance).
c. The outdoor unit can be accommodated much closer to internal units, thus, eliminating the long copper pipework routing between the outdoor unit and the indoor units inside the apartment resulting in significant energy savings.
It is also planned that during mild weather conditions, which are estimated to constitute to up to 40% of the year in Malta, heat extracted from residential premises requesting cooling, is recovered and transferred to premises requesting heating.
3. Pressurised Water System: water storage shall be at apartment level rather than at basement level. This will assure that sufficient water pressure will result without the need for properly sized pressure pumps for each apartment. Instead, only a small pump is required to provide adequate water pressure to each residential unit.
4. Ventilation of underground Car Parking Areas: all underground areas are designed to be naturally ventilated without the intervention of mechanical ventilation. This was done by creating openings and shafts that will serve for natural ventilation. In low wind periods, however, long axial fans have been installed to provide adequate air circulation.
5. Second class water will be used for cleaning and irrigation purposes in the landscaped areas. Rain water and greywater will be collected from balconies and terraces, stored in the reservoir and minimally treated before it is used.
6. Water Heating Through Heat Recovery: heat recovered from the air-conditioning cooling water will be used during hot weather in order to heat the indoor pool.
7. Natural ventilation of service rooms using the method of cross ventilation (by openings at opposite high and low ends). The rooms will be thermostatically controlled and mechanical ventilation will only be activated when maximum desired temperature is exceeded.
8. Envelope insulation plays an important role in the energy requirements to maintain a comfortable indoor temperature. This comprises of three main components:
a. Walls which are covered by a 30mm thick insulating layer of extruded polystyrene, type EPS 120, classified and certified to EN 13501 Euro Class E that had high insulating properties.
b. Ceilings and roofs will be covered with a 50mm layer of insulated material identical to one specified for exposed wall.
c. Apertures to exposed areas will comprise of an aluminium frame equipped with thermal break and double glazed, the latter which comprises of a 6mm and 6.38mm panel with a 14mm gap filled with 10% air and 90% argon. Additional, one panel has a face treated with Guardian Sun Guard HS Super Neutral protective coating.
Low energy building (<30 kWh/m2y)